关键词: 生育政策调整, 未来人口变动趋势, 老龄化, 劳动年龄人口

Abstract:  The implementation of the universal two-child policy will have a profound influence on China's future trends of population and changing path of aging. Using data from the 1% population sampling survey conducted by the National Bureau of Statistics in 2015，this paper conducts simulations of the size and structure of China's population over the years 2015-2100 by taking into account the potential demographic impacts of the fertility policy adjustment. The results show that China's total popula- tion will grow to the peak in around 2029 and then enter the era of negative population growth; China's population structure will be aging with shrinking working-age population size and expanding elderly population size; the speed of the decline in China's proportion of working-age population will be fast before 2050 and slow with fluctuations after 2050; China's size of elderly population will peak in around 2053 and then gradually begin declining; China will experience a rapid increase in proportion of elderly population before 2050 and the pace of population aging will slow down after 2050.

Keywords:  Fertility Policy Adjustment, Future Trends of Population, Aging, Working-Age Population